hdfs corruption appended to blocks is not detected by fs commands or fsck -------------------------------------------------------------------------
Key: HDFS-2848 URL: https://issues.apache.org/jira/browse/HDFS-2848 Project: Hadoop HDFS Issue Type: Bug Affects Versions: 0.23.0 Reporter: Ravi Prakash Assignee: Ravi Prakash Courtesy Pat White {quote} Appears that there is a regression in corrupt block detection by both fsck and fs cmds like 'cat'. Testcases for pre-block and block-overwrite corruption of all replicas is correctly reporting errors however post-block corruption is not, fsck on the filesystem reports it's Healthy and 'cat' returns without error. Looking at the DN blocks themselves, they clearly contain the injected corruption pattern. {quote} -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira